September weather in Summersville, MO
The average temperature in Summersville in September is 68.2°F (56.7°F–79.7°F). Average precipitation: inches.
September is a fall month in Summersville, and is warmer than the annual average of 56°F. Daily temperatures swing about 23°F between overnight low and afternoon high. Daylight averages about 12h 13m. For travel, September is one of the best months of the year to visit.
Avg High
79.7°F
Avg Low
56.7°F
Precipitation
in
Daylight
12h 13m
September records in Summersville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1995) | 42.1°F (2007) | 1.45 in (1959) |
| September 2 | 95.0°F (1975) | 45.0°F (1965) | 1.55 in (2003) |
| September 3 | 95.0°F (1975) | 45.0°F (1965) | 2.08 in (1993) |
| September 4 | 99.0°F (1990) | 41.0°F (1974) | 4.55 in (2008) |
| September 5 | 98.1°F (1990) | 43.0°F (1997) | 1.48 in (1985) |
| September 6 | 99.0°F (1990) | 41.0°F (1997) | 1.22 in (1977) |
| September 7 | 99.0°F (1990) | 41.0°F (1988) | 1.35 in (1983) |
| September 8 | 96.1°F (1980) | 44.1°F (2017) | 2.20 in (1972) |
| September 9 | 97.0°F (1980) | 43.0°F (2024) | 1.82 in (1942) |
| September 10 | 93.9°F (1963) | 43.0°F (2024) | 3.65 in (2010) |
| September 11 | 93.0°F (1983) | 41.0°F (1976) | 1.69 in (1958) |
| September 12 | 97.0°F (2025) | 42.1°F (2015) | 2.32 in (1975) |
| September 13 | 96.1°F (1980) | 41.0°F (1975) | 2.60 in (1945) |
| September 14 | 97.0°F (1971) | 39.9°F (2014) | 2.95 in (2003) |
| September 15 | 95.0°F (2025) | 41.0°F (1979) | 3.44 in (1996) |
| September 16 | 97.0°F (1980) | 39.9°F (1979) | 1.90 in (2016) |
| September 17 | 93.0°F (2019) | 37.9°F (1981) | 2.14 in (1968) |
| September 18 | 93.0°F (1972) | 37.9°F (1981) | 2.26 in (1970) |
| September 19 | 93.0°F (1972) | 37.0°F (1991) | 1.50 in (1975) |
| September 20 | 93.0°F (2022) | 39.0°F (2006) | 1.45 in (1971) |
| September 21 | 93.9°F (2022) | 35.1°F (1983) | 1.78 in (1965) |
| September 22 | 95.0°F (2022) | 36.0°F (1983) | 1.65 in (1965) |
| September 23 | 91.0°F (2017) | 30.0°F (1995) | 4.85 in (1984) |
| September 24 | 90.0°F (2017) | 30.0°F (1995) | 1.65 in (1997) |
| September 25 | 90.0°F (2017) | 32.0°F (1995) | 4.06 in (1941) |
| September 26 | 88.0°F (1986) | 35.1°F (2001) | 2.50 in (1992) |
| September 27 | 91.0°F (1999) | 35.1°F (1985) | 2.76 in (2007) |
| September 28 | 90.0°F (1986) | 37.0°F (1967) | 1.07 in (2020) |
| September 29 | 90.0°F (2023) | 33.1°F (1967) | 1.29 in (1946) |
| September 30 | 91.0°F (2023) | 33.1°F (1984) | 1.30 in (1972) |